Refrigerator



FIG. 1 is a perspective view of a refrigerator showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an elevational view of one side thereof, the opposite side being a mirror image;

FIG. 4 is an elevational view of one end thereof, the opposite end being a mirror image;

FIG. 5 is a top plan view thereof;

FIG. 6 is a second embodiment of a refrigerator showing my new design; and

FIG. 7 is a third embodiment of a refrigerator showing my new design. 

The ornamental design for a refrigerator, as shown and described. 